421341142231 has 4 divisors (see below), whose sum is σ = 439660322352. Its totient is φ = 403021962112.

The previous prime is 421341142223. The next prime is 421341142247. The reversal of 421341142231 is 132241143124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421341142231 - 2³ = 421341142223 is a prime.

It is a super-2 number, since 2×421341142231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421341142231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421341142531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9159590026 + ... + 9159590071.

It is an arithmetic number, because the mean of its divisors is an integer number (109915080588).

Almost surely, 2^421341142231 is an apocalyptic number.

421341142231 is a deficient number, since it is larger than the sum of its proper divisors (18319180121).

421341142231 is a wasteful number, since it uses less digits than its factorization.

421341142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18319180120.

The product of its digits is 4608, while the sum is 28.

Adding to 421341142231 its reverse (132241143124), we get a palindrome (553582285355).

The spelling of 421341142231 in words is "four hundred twenty-one billion, three hundred forty-one million, one hundred forty-two thousand, two hundred thirty-one".